Leer-feeder



H. W. MCNAUGHT.

LEER FEEDER.

APPLICATION. FILED ocT. 2|, 1918.

Patented me. 28,1920.

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H. W. MCNAUGHT.

LEER FEEDER.

APPLICATION FILED ocT. 2Il I9Is.

Patented Da. 28 11929.

2 SHEETS-SHEET 2.

HARRY WALKER MONAUGHT, 0F TERRE HAUTE, INDIANA, ASSIGNOR T0 AUTOMATIC MACHINERY COMPANY, 0F TERRE HAUTE, INDJIANA, A CORPORATION' 0F IN- DIANA.

LEER-FEEDER.

To all whom t may concern:

Be it known that l, HARRY W. MGNAUGHT, a citizen of the United States, residing at Terre Haute, in the county of Vigo and State of Indiana, have invented a new and useful Leer-Feeder, of which the following is a specification.

The object of my invention is to produce a machine which may be readily associated with glass leers of standard construction, by means of which freshly produced glass articles may be automatically charged into the leer.

The accompanying drawings illustrate my invention. Figure 1 is a plan with the leersetting in horizontal section and with intermediate longitudinal portions of leer and apparatus broken out for condensing the drawing; Fig. 2 a front elevation, with the leer-setting in vertical section; Fig. 3 an end elevation, on a larger scale,

In the drawings, 10 indicates a supporting frame in which is mounted an endless belt 11 running lengthwise thereof and supported at one end by idler 12 and at the other end by driving wheel 13. Frame 10 is supported at its ends by suitable legs 14, 14 which are adjustable in height. At intermediate points, frame 10 is supported by plates 15, 15 laid in transverse openings 16 formed through the side walls of the leersetting. Frame 10 has a length considerably greater than the width of the leer and is so arranged that its motor end will project only far enough from the leer to protect the motor from the heat of the leer, while its other end is projected to any desired distance either to receive freshly produced glass articles directly from the producing machine or from another endless carrier in a. well-known manner, said endless carrier projecting either directly, or indirectly, through the producing machine.

At its motor end the frame 10 carries an electric motor 2O connected by a suitable train of gears 21 and sprocket chain 22 with shaft 23 which, in turn drives shaft 24 which carries the chain wheel 13.

Shaft 24 carries a gear 25 (Fig. 2) which meshes with a gear 26 carrying a cam 27 (Fig. 2). Arranged adjacent, and in the path of, cam 27 is a bell crank 28, one arm of which supports a weight 29, while the other arm is'provided with a roller 30 env Specification of Letters Patent.

Patented nee. ea, ieee.

Application led October 21, 1918. Serial No. 258,947.

gaged by the cam. Pivoted to the bell crank 28 1s a llnk 31, connected to a slide 32 mounted 1n suitable bearings 33 carried by frame 10. Pivoted to slide 32 is a link 34, plvoted to a slide 35l connected, by pins 36, 36 with bell cranks 37, 37 which, in turn, are pivoted to rearwardly projecting arms 38, 38 carried by pusher bar 39 which is arranged alongside of that portion of the belt 11 which lies within the leer and just above the plane of the upper, or working face, of the belt. Each arm 38 carries a roller 41 which rolls upon a table 42 which is extended from the frame 10, the arrangement being such that reciprocations of the bell crank 28 will cause the pusher bar 39 to be projected transversely across the working face of the belt 11.

.Supported by hinges 50 on frame 10 is a discharging apron 51, with its frame end on a level with the upper face of the frame 10 and its outer end resting upon the leer belt. Apron 51 carries a side guard 52 at its farthest edge and this side guard is continued as a bridge piece 53 which bridges over belt 11 and is attached to a bracket 54 adjacent one end of the pusher bar 39.

Just outside the leer, at the point most remote from motor 20, frame 10 carries a bracket 60 to which is pivoted, on a vertical axis, a safety guide which comprises side plates 61, 62 and connecting yokes 63, 63, the side guards substantially paralleling belt 11 and yokes 63 connecting them. The free end of the safety guide is supported by a roller 64 carried by one of the yokes 63 and rolling upon a plate 65 carriedby frame 10. The adjacent end of guard 62 is projected so as to overlie the rear face of pusher bar 39, so that retracting movements of said pusher bar will insure a turn of the safety guide to the normal position shown in Fig. 1. This end of the pusher bar 39 carries a stop plate 66 which is adapted to close the end of the safety guide when the pusher bar is projected to its ejectin'g position. The free end of guard 61 is out-turned asindicated at 61 and plays between a guide 67 and the guard 68 mounted upon apron 51.

The operation is as follows: Belt 11 is driven continuously in the direction indicated by the arrow in Fig. 1 and articles placed upon said belt are carried thereby through the safety guide and from thence along in front of the pusher bar 39 until one of the articles reaches the bridge piece 53 by which it is stopped, the belt 11 sliding beneath the article and continuing to bring succeeding articles in front of the pusher bar.

In due course, cam 27 engages roller 30 and causes the pusher bar 39 to push the accumulated articles transversely offl from belt 11 on to apron 51, the stop plate 66 moving across the delivery end of the safety guide and preventing further advance of articles through said guide until the pusher bar 39 is returned to its normal position. It is not always possible to operate the pusher bar in exact time with the departure of an article from the mouth of the safety gate, at the adjacent end of the pusher bar, and it is for that reason that the safety guide is provided. If an article is caught between the free end of the guide and the adjacent end of the pusher bar, the guide will yield and the article will roll between the guide and pusher bar, until the pusher bar will push the article back into the safety guide. When the pusher bar returns to normal position, it will engage the finger 62 and return the safety guide to normal posi tion. l

The operation just described is repeated continuously and the articles are pushed down the apron 51 on to the leer belt and are carried away by the leer belt in the usual manner. It is apparent that with this arrangement, the movement of the leer belt may be a continuous one, and that the feedin operation will be entirely automatic.

n order to install the apparatus, it is merely necessary to cut openings in the side walls of the leer segment sufficient to permit the projection of frame 10 therethrough, the opening at one side being of sufficient size to receive the safety guide. These openings may be formed at any point in thev length of the leer, because frame 10 lies above the working level of the leer belt. If desired, the apparatus may be placed across the mouth of the leer, without cutting openings in the side walls of the setting, and the apron 51 projected into the mouth, but this is not as satisfactory, because it either leaves the mouth of the leer wide open or requiring` some sort of guarding mechanism.

he moving partsdirectly connected with the pusher bar are not of such character as 'to be injuriously affected by the heat of the leer. c

I clann as my invention:

1. Aleer feeder comprising a'main frameadapted to be projected transversely through a leer above-.the leer belt, an endless belt -mounted in the frame and traversing the same longitudinally with a Working face capable of slipping beneath articles trans- 65 ported thereby, a pusher bar arranged alongto pressure exerted by the side the endless belt and capable of projection transversely across said belt, means for continuously driving the endless belt, means for intermittently reciprocating the bar during movement of the belt, a guard arranged above the endless belt to halt articles on the belt in front of the pusher bar, and a stop plate carried by the pusher bar at its end most distant from the guard.

2. A leer feeder comprising a main frame, an endless belt mounted in said frame adapted to be projected transversely through a leer above the leer belt and provided with a working face capable of slipping lbeneath articles arrested thereon, means for driving said belt, a guard arranged across said belt to arrest the progress of articles carried on the belt, a pusher bar arranged alongside the belt adjacent said guard, means to reciprocate said pusher bar transversely of the belt, a safety guide comprising spaced guard rails extending longitudinally of the belt with their` discharge ends arranged adjacent one end of the Vpusher bar, a stop plate carried by said end of the pusher bar, and means for yieldably supporting the safety guide.

' 3. A leer feeder comprising a main frame adapted to be projected transversely through a leer above the leer belt, an endless belt mounted in said frame and provided with a working face capable of slipping beneath articles arrested thereon, means for driving said belt, a pusher bar arranged alongside the belt, means to reciprocate said pusher bar transversely of the belt, a safety guide comprising spaced guard rails extending longitudinally of the belt with their discharge ends arranged adjacent one end of the pusher bar, and means for yieldably supporting the safety gate to permit the end adjacent the pusher bar to yield laterally to pressure exerted by the pusher bar.

4. A leer feeder comprising a main frame adapted to be projected transversely through a leer above the leer belt, an endless belt mounted in said frame and provided with a working face capable of slipping beneath articles arreste-d thereon, means for driving said belt, a pusher bar arranged alongside the belt, means to reciprocate said pusher bar transversely of the belt, a safety guide comprising spaced guard rails extending longitudinally of the belt with their discharge ends arranged adjacent one end of the pusher bar, means for yieldably supportlng the safety gate to permit the end adjacent the pusher bar to yield laterally usher bar, and a portion of the safety guide overlapping the pusher bar so as to be returned to normal position upon retraction of the pusher bar.

5. A leer feeder comprising a main frame adapted to be projected transversely through a leer above the leer belt, an endless belt mounted in said main frame and provided with a Working face capable of slipping beneath articles transported thereby, a safety guide comprising spaced guide rails arranged substantially parallel With the endless belt, a pivotal support for one end of said safety guide, and a roller Support for the free end of said guide.

In witness whereof, l have hereunto set my hand at Terre Haute, Indiana, this 16th 10 day of October, A. D. one thousand nine hundred and eighteen.

HARRY 1WALKER- MCNAUGHT. 

